General description Crafted from premium brass, these 1/4 inch internal thread industrial connectors are designed for superior durability and strength, ensuring long-lasting performance without rusting or deteriorating, outperforming aluminum alternatives. Featuring a 1/4 inch NPT internal thread and 1/4 inch body size, these connectors are perfect for industrial and automotive applications, compatible with all standard industrial sized plugs and fittings. Ideal for use in professional environments, automotive shops, or home garages, these air connectors are perfect for air hoses, air compressors, air tools, pneumatic tools, blowers, and pressure washers. Technical specifications Size: 1/4 inch NPT internal thread Body size: 1/4 inch Material: Brass Package Contents: 10 x NPT Internal Air Couplers Measurement allowed error: +/- 1-3 cm Usage Designed for effortless switching, the innovative quick-connect feature allows you to connect and separate air hoses swiftly without any tools,